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stash: add --label-ours, --label-theirs, --label-base for apply

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Allow callers of "git stash apply" to pass custom labels for conflict
markers instead of the default "Updated upstream" and "Stashed changes".
Document the new options and add a test.

Signed-off-by: Harald Nordgren <haraldnordgren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Harald Nordgren
2026-04-10 21:01:10 +00:00
committed by Junio C Hamano
parent b15384c06f
commit 1fcc199bd8
4 changed files with 67 additions and 11 deletions
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11
Documentation/git-stash.adoc
View File

@@ -12,7 +12,7 @@ git stash list [<log-options>]
git stash show [-u | --include-untracked | --only-untracked] [<diff-options>] [<stash>]
git stash drop [-q | --quiet] [<stash>]
git stash pop [--index] [-q | --quiet] [<stash>]
git stash apply [--index] [-q | --quiet] [<stash>]
git stash apply [--index] [-q | --quiet] [--label-ours=<label>] [--label-theirs=<label>] [--label-base=<label>] [<stash>]
git stash branch <branchname> [<stash>]
git stash [push] [-p | --patch] [-S | --staged] [-k | --[no-]keep-index] [-q | --quiet]
[-u | --include-untracked] [-a | --all] [(-m | --message) <message>]
@@ -195,6 +195,15 @@ the index's ones. However, this can fail, when you have conflicts
(which are stored in the index, where you therefore can no longer
apply the changes as they were originally).
`--label-ours=<label>`::
`--label-theirs=<label>`::
`--label-base=<label>`::
These options are only valid for the `apply` command.
+
Use the given labels in conflict markers instead of the default
"Updated upstream", "Stashed changes", and "Stash base".
`--label-base` only has an effect with merge.conflictStyle=diff3.
`-k`::
`--keep-index`::
`--no-keep-index`::

32
builtin/stash.c
View File

@@ -44,7 +44,7 @@
#define BUILTIN_STASH_POP_USAGE \
N_("git stash pop [--index] [-q | --quiet] [<stash>]")
#define BUILTIN_STASH_APPLY_USAGE \
N_("git stash apply [--index] [-q | --quiet] [<stash>]")
N_("git stash apply [--index] [-q | --quiet] [--label-ours=<label>] [--label-theirs=<label>] [--label-base=<label>] [<stash>]")
#define BUILTIN_STASH_BRANCH_USAGE \
N_("git stash branch <branchname> [<stash>]")
#define BUILTIN_STASH_STORE_USAGE \
@@ -590,8 +590,11 @@ static void unstage_changes_unless_new(struct object_id *orig_tree)
die(_("could not write index"));
}
static int do_apply_stash(const char *prefix, struct stash_info *info,
int index, int quiet)
static int do_apply_stash_with_labels(const char *prefix,
struct stash_info *info,
int index, int quiet,
const char *label_ours, const char *label_theirs,
const char *label_base)
{
int clean, ret;
int has_index = index;
@@ -643,9 +646,9 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
init_ui_merge_options(&o, the_repository);
o.branch1 = "Updated upstream";
o.branch2 = "Stashed changes";
o.ancestor = "Stash base";
o.branch1 = label_ours ? label_ours : "Updated upstream";
o.branch2 = label_theirs ? label_theirs : "Stashed changes";
o.ancestor = label_base ? label_base : "Stash base";
if (oideq(&info->b_tree, &c_tree))
o.branch1 = "Version stash was based on";
@@ -717,17 +720,31 @@ restore_untracked:
return ret;
}
static int do_apply_stash(const char *prefix, struct stash_info *info,
int index, int quiet)
{
return do_apply_stash_with_labels(prefix, info, index, quiet,
NULL, NULL, NULL);
}
static int apply_stash(int argc, const char **argv, const char *prefix,
struct repository *repo UNUSED)
{
int ret = -1;
int quiet = 0;
int index = use_index;
const char *label_ours = NULL, *label_theirs = NULL, *label_base = NULL;
struct stash_info info = STASH_INFO_INIT;
struct option options[] = {
OPT__QUIET(&quiet, N_("be quiet, only report errors")),
OPT_BOOL(0, "index", &index,
N_("attempt to recreate the index")),
OPT_STRING(0, "label-ours", &label_ours, N_("label"),
N_("label for the upstream side in conflict markers")),
OPT_STRING(0, "label-theirs", &label_theirs, N_("label"),
N_("label for the stashed side in conflict markers")),
OPT_STRING(0, "label-base", &label_base, N_("label"),
N_("label for the base in diff3 conflict markers")),
OPT_END()
};
@@ -737,7 +754,8 @@ static int apply_stash(int argc, const char **argv, const char *prefix,
if (get_stash_info(&info, argc, argv))
goto cleanup;
ret = do_apply_stash(prefix, &info, index, quiet);
ret = do_apply_stash_with_labels(prefix, &info, index, quiet,
label_ours, label_theirs, label_base);
cleanup:
free_stash_info(&info);
return ret;

29
t/t3903-stash.sh
View File

@@ -1666,6 +1666,35 @@ test_expect_success 'restore untracked files even when we hit conflicts' '
)
'
test_expect_success 'apply with custom conflict labels' '
git init conflict_labels &&
(
cd conflict_labels &&
test_commit base file &&
echo stashed >file &&
git stash push -m "stashed" &&
test_commit upstream file &&
test_must_fail git -c merge.conflictStyle=diff3 stash apply --label-ours=UP --label-theirs=STASH &&
test_grep "^<<<<<<< UP" file &&
test_grep "^||||||| Stash base" file &&
test_grep "^>>>>>>> STASH" file
)
'
test_expect_success 'apply with empty conflict labels' '
git init empty_labels &&
(
cd empty_labels &&
test_commit base file &&
echo stashed >file &&
git stash push -m "stashed" &&
test_commit upstream file &&
test_must_fail git stash apply --label-ours= --label-theirs= &&
test_grep "^<<<<<<<$" file &&
test_grep "^>>>>>>>$" file
)
'
test_expect_success 'stash create reports a locked index' '
test_when_finished "rm -rf repo" &&
git init repo &&

6
xdiff/xmerge.c
View File

@@ -199,9 +199,9 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
int size, int i, int style,
xdmerge_t *m, char *dest, int marker_size)
{
int marker1_size = (name1 ? strlen(name1) + 1 : 0);
int marker2_size = (name2 ? strlen(name2) + 1 : 0);
int marker3_size = (name3 ? strlen(name3) + 1 : 0);
int marker1_size = (name1 && *name1 ? strlen(name1) + 1 : 0);
int marker2_size = (name2 && *name2 ? strlen(name2) + 1 : 0);
int marker3_size = (name3 && *name3 ? strlen(name3) + 1 : 0);
int needs_cr = is_cr_needed(xe1, xe2, m);
if (marker_size <= 0)